[POLICY] Update core images/config for RC istanbul

Updated images for all components.

Issue-ID: POLICY-3696
Change-Id: Idf598cc4d59c7a67327fe470121b004c890343cc
Signed-off-by: liamfallon <liam.fallon@est.tech>
diff --git a/kubernetes/policy/components/policy-xacml-pdp/values.yaml b/kubernetes/policy/components/policy-xacml-pdp/values.yaml
index 91984cc..7c2d1b1 100755
--- a/kubernetes/policy/components/policy-xacml-pdp/values.yaml
+++ b/kubernetes/policy/components/policy-xacml-pdp/values.yaml
@@ -83,7 +83,7 @@
 # Application configuration defaults.
 #################################################################
 # application image
-image: onap/policy-xacml-pdp:2.5.0
+image: onap/policy-xacml-pdp:2.5.1
 pullPolicy: Always
 
 # flag to enable debugging - application support required